Sustainable Tariffs: achieveing fair and equitable water management in Sweden

Convenor(s):
WSP

In Sweden, most of the historically large water investments are fully depreciated and the access to water is taken for granted. With an ageing infrastructure in need of repair, and consumers accustomed to low prices, there is a need for efficient management of network assets. This requires a shift from a reactive to a proactive approach to managing water and wastewater.

WSP has developed life cycle cost modelling tools for water and wastewater assets which allow for long-term economic forecasting for municipalities.  The water and wastewater strategy is evaluated and adapted based on the municipality‚Äôs unique investment needs over the coming 15 years.

This method has been used in approximately 70 municipalities throughout Sweden over the past decade to transition from a minimum-spend perspective to a sustainable service perspective. This helps ensure fair and equitable tariffs in the face of the water challenges from climate change and urbanisation.

By creating a sustainable water and wastewater management plan, challenges like flooding, drought, pollution and eutrophication can be met. The plan can be coupled with innovative wastewater and urban water techniques, adjusted to meet current regulations and permits.  As a result, environmental goals can be fulfilled through cost modelling.

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